Kennedy, G. (2000). Electronic Communication Systems 4th,ed ,5th,Rep,ed. Tata McGraw Hill Pub.
Lua i Stíl Chicago (17ú heag.)Kennedy, George. Electronic Communication Systems 4th,ed ,5th,Rep,ed. New Delhi: Tata McGraw Hill Pub, 2000.
Lua MLA (9ú heag.)Kennedy, George. Electronic Communication Systems 4th,ed ,5th,Rep,ed. Tata McGraw Hill Pub, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.